RUSSIAN tennis star Andrey Rublev lost his cool spectacularly as he crashed out of the French Open today.

The sixth seed had a heated argument with umpire Lazemar Engzell over the mark left by a disputed line call during the second set of his third-round clash with Matteo Arnaldi.

Rublev promptly dropped serve and exploded with rage, smashing his racket to the ground and screaming towards his players’ box.